test(vtt-thumbnail): [PKG-VTT-THUMB-05] verify historical core and fullscreen combinations

2026-10-10 04:36:15 -08:00 · 2026-09-14 09:57:21 +08:00
1 parent 4fa5c68be9
commit 07d5bfef2e
@@ -110,8 +110,13 @@ plugin. Empty or comment-only input remains a valid empty preview.

 The exported callable has a writable self `.default` alias, restoring the usable 1.0.x
 CommonJS default access while retaining direct calls. It does not add a name property to the
-registration Promise. Earlier `thumbnails` control names are separately frozen and remain
-combination/distribution work for tasks 05-06. The approved declaration migration does not
+registration Promise. The old 1.0.1 plugin uses `thumbnails`, which works with the
+recorded 5.1.6 core. Core 5.1.7 already reserves that name, and the actual 1.0.1
+bundle rejects registration on 5.1.7, 5.4.0 and the candidate core. These reproduced
+historical failures are not successful compatibility cells. Later plugins and
+this candidate use `vtt-thumbnail`; do not silently replace the core's reserved
+control or introduce an alias over it. This pairing remains part of task05/release
+review. The approved declaration migration does not
 complete the remaining package or device acceptance.

 ## Verification and future changes
@@ -123,14 +128,27 @@ yarn test:vtt-thumbnail
 yarn test:vtt-thumbnail-types-package
 yarn build:ts artplayer-plugin-vtt-thumbnail
 yarn test:browser test/browser/vtt-thumbnail-lifecycle.spec.js
+yarn test:browser test/browser/vtt-thumbnail-combinations.spec.js
 yarn build artplayer-plugin-vtt-thumbnail
 ```

 The unit helper can load actual main/legacy files with ARTPLAYER_VTT_THUMBNAIL_ARTIFACT or
 the frozen former implementation with ARTPLAYER_VTT_THUMBNAIL_BASELINE=1. Historical tests
 are distinct from candidate expectations. Browser tests use real published/candidate cores,
-native fetch/abort, mouse hover, sprite decoding and cleanup. Their scope is not full old
-core/device coverage, installed tarballs, mobile Safari or the online editor.
+native fetch/abort, mouse hover, sprite decoding and cleanup. The task05 combination
+checkpoint adds actual DOM screenshot pixels, Chapter coexistence, web/native
+fullscreen and source switch against core 5.1.6, 5.1.7, 5.3.0, 5.4.0 and candidate.
+The 5.3.0 archive is an adjacent stable comparison, not the unpublished 5.3.1
+source-associated version. Historical 1.0.2/1.0.3/1.1.0 main bundles run with
+candidate core; 1.0.1 runs with 5.1.6 and retains its later-core failure tests.
+Compact-arrow input for 1.0.x compiled artifacts is labeled explicitly; ordinary
+arrow parser failures remain in the existing historical contract tests.
+
+Mobile integration uses an Android user agent and synthetic DOM touch payloads
+through actual core handlers with real media seeking and the 500ms hide timer.
+It is not trusted OS input, physical Android or Safari/iOS verification. Task05
+remains open for required device evidence and historical-pair disposition;
+installed main/legacy/ESM consumers and the actual local editor remain task06/EX-03.

 Modify parsing in parseVtt, requests in request, layout/timers in preview, and ownership in
 lifetime. Preserve the normal/failure lifecycle tests alongside any parser improvements.
@@ -57,6 +57,13 @@ JavaScript default access, the direct factory, and legacy distribution entrypoin
 See [ARCHITECTURE.md](ARCHITECTURE.md) for module ownership, testing commands and remaining
 compatibility validation.

+The old 1.0.1 JavaScript bundle registers a control named `thumbnails`. It works
+with the tested core 5.1.6, but conflicts with the built-in control reserved by
+core 5.1.7 and later tested cores (5.4.0 and the refactor candidate). The current
+plugin uses `vtt-thumbnail`; retain that name when integrating custom controls.
+This documented historical combination failure predates the refactor. Native
+desktop tests and emulated touch checks do not certify physical mobile devices.
+
 ## License

 MIT © Harvey Zhao
@@ -0,0 +1,246 @@
+{
+  "schemaVersion": 1,
+  "task": "PKG-VTT-THUMB-05",
+  "sourceCommit": "4fa5c68be9d2d0d60d725c2a87b8d92a4dc8a85a",
+  "capturedAt": "2026-09-14T01:40:29.729Z",
+  "metadata": {
+    "url": "https://registry.npmjs.org/artplayer/5.1.6",
+    "status": 200,
+    "sha256": "e1f9c3b9887fc4143a1b5b89f001cb05c013dee611dd427bfb89f5d27ac6641d"
+  },
+  "association": "Published core corresponding to usable VTT 1.0.1 archive source association; not a claimed minimum supported core. Core 5.3.1 was previously confirmed absent, so 5.3.0 is an adjacent stable comparison only.",
+  "release": {
+    "name": "artplayer",
+    "version": "5.1.6",
+    "metadataUrl": "https://registry.npmjs.org/artplayer/5.1.6",
+    "tarball": "https://registry.npmjs.org/artplayer/-/artplayer-5.1.6.tgz",
+    "integrity": "sha512-cqnVVLKCKWCryKl6Pmop50/Di9IQwOeNNQs5qWGzJDPiM0qTC7Q/Enusa+8JQid8p09fvp4Vc32ViSSYutdEeQ==",
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+      "package/src/plugins/autoOrientation.js": "b334635916271821f15d5669c78bd54353c73f789e5f3881b3f42892c25e3887",
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+      "package/src/plugins/fastForward.js": "77f2bf8f4d3b81328da0ca95bc74eb5f8b36ab70b0f0fa406d90ee5448ada697",
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+      "package/src/plugins/miniProgressBar.js": "8d22005b3a42820c7b6c53f0abaaed38f94a5fa12239e27f28efccd379c2c5eb",
+      "package/src/scheme/index.js": "42f14c584e0e663f8f0a111954fdb26e56ebabd4c5e45c455fa740f03d268b47",
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+      "package/src/style/hint.less": "e29017145d831b23337b500b9ed5ff3706ce56f31dc4ac2720615c6ea3a9d97d",
+      "package/src/style/icon.less": "a75dcb23a859cb42fa50cadada36508ce752aed6ea03984a8f5947d8584d10b7",
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+      "package/src/style/info.less": "ba577cbe605cd541d0171d4e0b2fe15333963da4bc040d466bfb347f9be79bcc",
+      "package/src/style/layers.less": "93791f5e52176a166835e1f4b3d24a07d305531f91647cc8aea75496ec72b8ab",
+      "package/src/style/loading.less": "7f211e95694e0d3aa64b6f8e25deb6f60c2c65303dff9df44b1acab6cbc30bcd",
+      "package/src/style/mask.less": "251ea4a6b4ca20de2baaa8b13b420a77180fb570ca1744a7bd757d646b5b3664",
+      "package/src/style/mini.less": "de25c47271e807fc311f33110e651ea0ee143e61b15ae92cdcbe4ea8d2e78683",
+      "package/src/style/mixins.less": "3bb2205bf2b2ff9c224010fc1a170f1e56614f6e710b222f2e8807747f772c04",
+      "package/src/style/mobile.less": "088a21666ebf5b631f2d15527c2a283890b25285d0d31ea5f60adfaf3689d936",
+      "package/src/style/notice.less": "98baf3481e7269bb8b4d399d561a15f6f5189e45f50225adf41aabb64d0e94d1",
+      "package/src/style/plugins.less": "97b4baef8a0493f152ae73ce1b988cab0d7eebbe4a6c119e944247d19bcfd2bc",
+      "package/src/style/poster.less": "939f33aa2a48806eb1da3bc4b49a8f9ab541ff2a53796260f475b2c7a98cba60",
+      "package/src/style/progress.less": "1440c2dee6edce1edf0dd41cb8efa03fd504d295e119af9c7735b1757db73a38",
+      "package/src/style/selector.less": "5320e35c670912a57534fdf4122aef566c9ca273e14b52af5d882c8cd4591f74",
+      "package/src/style/setting.less": "1951153c3fa2ae6541c0a046404db043a1287b80847a499c6386c49c3e929695",
+      "package/src/style/subtitle.less": "b26cdc6aa6e5a113a0197f08e895ce73f0557e54d0e4d1dc4cac03a2fd48b5c0",
+      "package/src/style/variables.less": "58f64242b0838815fc96083a698a44aea15ff876fd0a1154ba496171b4187e3c",
+      "package/src/style/video.less": "a2a7ca14711238c18acdfa7d094c5223f269618cbb884866a6cdc22af7579b8d",
+      "package/src/style/volume.less": "7593ef9f5e34713b30b5d690182c6510a0912dd659f3405f7f38242398fbdfcb",
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+      "package/src/template.js": "6561ac281682a65f3423dffd232b56e14f10d88713743d6505e1fbe0cf5402a9",
+      "package/src/utils/compatibility.js": "079c4621b7856d2f34bfba27376048c47b538cfc3e07c9d019701bd05a8b62c8",
+      "package/src/utils/component.js": "1a96e1ce80fab7a2c88e0849bf8519edd2554e332a4d3461eb7de8d3c709d638",
+      "package/src/utils/dom.js": "6ec4e5bff93aa9a8203a8fafcc6fb0781f22f78bb38e85e230dd1d7c1c50077a",
+      "package/src/utils/emitter.js": "637c2b65c89a34ca3208335a892258540eefc49cb8f87f981c69496fe49efa89",
+      "package/src/utils/error.js": "3b395e07922fb3fcbb7de34e662ada1914b3499dac6f109e522c432bd705f3d1",
+      "package/src/utils/file.js": "c02139c54e569bf635f90d32b7ccb9d6cb8ba5ff126071e6c79b34a134b11cb2",
+      "package/src/utils/format.js": "318a9e844fdbb64168a1d076c45697e35b0f907103089bce94b414f132ab3e9c",
+      "package/src/utils/index.js": "585394c7bfda8e8548cfb92c73ae1e45cccc55c48d683ca9a48099debdf4b98e",
+      "package/src/utils/property.js": "48faa8d72daf7bea824146ecf9ccec0575fd32995d482cb94731d859b1f9a437",
+      "package/src/utils/subtitle.js": "4f5450fd6d4881d2499d2c4f54e8ddc39c5edb6d2bb2d6c6dd7555672bd28e5c",
+      "package/src/utils/time.js": "d471d1cbde1a108b908a083005a3af1e17a3df55b084cec1f1866368f1f3d07b",
+      "package/tsconfig.json": "bf1616499e177df22713d30f25dd255295c43d34310185403b2dfb1c4970c793",
+      "package/types/artplayer.d.ts": "ae6877ec208b09c9538e46b33eb80230690d7a3e04c69f14ea33a57557039143",
+      "package/types/component.d.ts": "7a4ea13e3f6400918190d2f34992b7de96e6145b4ebdf2030976594d5673f50d",
+      "package/types/config.d.ts": "3e2e3294802653fbab62f05d5d656411c657641d8f7a3ce64295eef44b37ef62",
+      "package/types/cssVar.d.ts": "a83429be37936c98850975c1a3a6896bb8a113a270b8cbe3994967f1d41458a3",
+      "package/types/events.d.ts": "f5b052edb9ef5fee846fe7aea9393e80df964226f1d4de21e6dfc0164662d0ce",
+      "package/types/i18n.d.ts": "75a61026bbc08cf29498700d1ed73b115734d9284085ab1ea0769d3d1a3c3d8b",
+      "package/types/icons.d.ts": "a4d2fa1a85755cc40d0ac9d0dadb7bedae1872b3306ba434f0fd817c0b2ac3b6",
+      "package/types/option.d.ts": "a336ee6381415fa7141edc1a1967db12e353b1cfad3af6f390a3c47f146faa3a",
+      "package/types/player.d.ts": "94dfcb837326954195cf38363ef8d8b909243549579c59fdde344cd8d8f1886f",
+      "package/types/quality.d.ts": "b07e6525dcadbbb6fcd7c5ccb5e24eca87d25b24b8a23b49891c032a479fe660",
+      "package/types/setting.d.ts": "fbf66bb3fd75e4d57052aafc41f752f8fca1c801ad502ff06ef11a6ab6b86200",
+      "package/types/subtitle.d.ts": "76d899e4f72aeafedfd8f063f9dcbe2ada9e367d0bb2dc6a01b9929d3ebbd58f",
+      "package/types/template.d.ts": "a6065449803fc0adca1b39a2588c01c4d82e4b2e3be73bb66f601d579aa2a583",
+      "package/types/utils.d.ts": "5cf2785edc48a462f28603b43f1176ee1f7bccc5be9d0824798cc9af32b5d45d"
+    },
+    "manifest": {
+      "license": "MIT",
+      "name": "artplayer",
+      "version": "5.1.6",
+      "main": "dist/artplayer.js",
+      "legacy": "dist/artplayer.legacy.js",
+      "types": "types/artplayer.d.ts",
+      "homepage": "https://artplayer.org",
+      "author": "Harvey Zack <laozhaochaguan@gmail.com>",
+      "browserslist": "last 1 Chrome version",
+      "description": "ArtPlayer.js is a modern and full featured HTML5 video player",
+      "repository": {
+        "type": "git",
+        "url": "git+https://github.com/zhw2590582/ArtPlayer.git"
+      },
+      "bugs": {
+        "url": "https://github.com/zhw2590582/ArtPlayer/issues"
+      },
+      "keywords": [
+        "html5",
+        "video",
+        "player"
+      ],
+      "dependencies": {
+        "option-validator": "^2.0.6"
+      }
+    }
+  }
+}
@@ -0,0 +1,74 @@
+# PKG-VTT-THUMB-05: browser combination checkpoint
+
+Baseline: `4fa5c68be9d2d0d60d725c2a87b8d92a4dc8a85a`. Task05 remains doing;
+this checkpoint does not claim physical-device or complete distribution acceptance.
+
+## Inputs and actual coverage
+
+The new 5.1.6 core snapshot verifies the registry SHA-512, archive SHA-256 and
+197 archive members. The browser server verifies the actual main entry before
+serving it. This is the source-associated core for usable VTT 1.0.1, not a newly
+invented minimum-supported version. Existing frozen 5.1.7, 5.3.0 and 5.4.0 inputs
+and the current candidate complete the five-core comparison. Npm 5.3.1 was
+previously found absent; 5.3.0 is only an adjacent published stable comparison.
+
+`vtt-thumbnail-combinations.spec.js` covers:
+
+- Candidate plugin on all five cores: actual red/blue preview pixels from DOM
+  screenshots, real pointer positioning, Chapter progress coexistence, native
+  video play/pause, web and native fullscreen, source switching without refetch,
+  unchanged control identity and owned UI removal on destroy.
+- Actual published 1.0.2/1.0.3/1.1.0 main bundles on candidate core, and 1.0.1
+  on 5.1.6: historical callable/default exports, previews, control identities,
+  source switching and a single VTT fetch. The historical compact-arrow input
+  requirement is explicit; ordinary-arrow parser failures remain separate tests.
+- Android user-agent profiles with synthetic DOM touch payloads: the actual core
+  gesture handlers emit setBar and perform native media seeking, the preview
+  follows the drag and its real 500ms timer hides it. This is not trusted OS input
+  or physical Android/iOS evidence.
+- Existing native fetch/abort, malformed input/recovery and lifecycle tests remain.
+
+The current source build is the plugin input. This is not an installed tarball,
+every old legacy bundle, a browser-device farm or the online editor. Those gates
+remain task06/EX-03 and the relevant device/release tasks. No new dependencies,
+runtime code, public types or shippable build artifacts change in this checkpoint.
+
+## Findings and failed runs
+
+VTT 1.0.1 registers `thumbnails`. Actual core 5.1.6 creates its built-in control
+only when a thumbnail URL is configured, so the plugin can register normally.
+Core 5.1.7 reserves the control unconditionally. The resulting duplicate-name
+rejection reproduces on 5.1.7, 5.4.0 and candidate cores in all three engines.
+The nine explicit failure assertions are historical evidence, not successful
+old-plugin/new-core acceptance. Preserve the current reserved control; any
+compatibility accommodation must account for its public identity and duplicate
+registration behavior. The pairing is recorded as an open release-review issue.
+
+The initial 27-case run had nine passes and eighteen failures. Fifteen failures
+came from test-only setBar calls without the event required by newer core hover
+handlers; the tests now use real mouse movement. Three exposed the 1.0.1 collision.
+Legal and incompatible combinations now have distinct explicit assertions.
+
+The expanded 69-case run passed. Adding native fullscreen then produced fourteen
+passes and one Chromium candidate screenshot timeout. Trace showed actual
+fullscreen ownership followed by a hidden preview at screenshot time; cleanup
+also timed out after the interrupted screenshot. Mouse positioning now first
+uses Playwright's stable/actionable progress hover, then computes the desired
+position, and verifies visible preview/background before screenshot. The final
+69-case run passes. This changes test interaction timing, not player code, and
+does not prove a product fix for every prior timeout. Initial reports are retained;
+no retry, skip, timeout increase or weaker pixel expectation was introduced.
+
+## Verification and handoff
+
+`../baselines/vtt-thumbnail-combinations.json` records exact browser versions,
+input identities, passes/failures, screenshots/report fingerprints and Node/CI/lint
+results. Nine passing assertions deliberately confirm historical incompatibility.
+The task remains open for physical-device evidence, final candidate revalidation
+and disposition of the old reserved-name pairing; controlled HTTP fixtures do
+not establish external CDN or every sprite format's behavior.
+
+The package architecture and environment/browser guides describe actual scope.
+Revert this checkpoint as one unit to remove the new route, frozen core snapshot,
+combination tests and evidence without reverting the earlier VTT implementation.
+Local checkpoint commit only; no push or publication.
@@ -57,7 +57,7 @@ Node10 是 TS 模块解析模式名，不代表支持 Node.js 10。现代 es2020
 | artplayer-plugin-jassub / 1.1.0 | ASS、worker/WASM/font 加载、切源/销毁；短 ASS+明确来源字体 | 内嵌资源哈希已有；版本对应、跨源/worker 限制、实际渲染待 | PKG-JASSUB-01/02/05/06 |
 | artplayer-plugin-multiple-subtitles / 1.2.0 | VTT 合并/排序/解析错误、URL 回收；双语言/空/坏 VTT | parser 来源头已观察；特有行为和浏览器字幕待 | PKG-MULTI-SUB-01/02/05/06 |
 | artplayer-plugin-vast / 1.2.0 | Glomex/Google IMA、广告错误/恢复、重复初始化；供应商测试广告标签 | 依赖版本已记录；实际 IMA 网络/广告流程待，PR 用受控 adapter | PKG-VAST-01/02/05/06 |
-| artplayer-plugin-vtt-thumbnail / 1.1.0 | WebVTT 时间和 sprite xywh、图片失败/跨源；本地 VTT+sprite | 五个实际发布归档和可控历史边界/故障已核对；原生图片、浏览器、核心组合仍待 05/06 | PKG-VTT-THUMB-01/02/05/06 |
+| artplayer-plugin-vtt-thumbnail / 1.1.0 | WebVTT 时间和 sprite xywh、图片失败/跨源；本地 VTT+sprite | 05 检查点已有五核心桌面像素/Chapter/原生和网页全屏、切源及模拟触摸；1.0.1 控件重名历史失败和真机/分发仍开放，见 vtt-thumbnail-combinations.json | PKG-VTT-THUMB-01/02/05/06 |
 | artplayer-proxy-canvas / 1.1.0 | video-like 属性/事件、Canvas 绘制、seek/销毁；MP4 | shim 与实际媒体顺序、跨源/移动待 | PKG-CANVAS-01/02/05/06 |
 | artplayer-proxy-mediabunny / 1.2.0 | Mediabunny 1.56.1 当前解析；WebCodecs/AudioContext、HLS/轨道拓扑、AV 同步 | 库依赖不等于 codec 可用；准确 codec/profile、设备能力、长播放待 | PKG-MB-01/02/07/08/09/10 |
 | artplayer-tool-iframe / 1.1.0 | 跨窗协议、ready/错误/销毁；同源与两个受控不同 origin 页面 | 消息/嵌套浏览器及沙箱权限待 | PKG-IFRAME-01/02/05/06 |
@@ -4,7 +4,7 @@

 基线：`40fcda6a37d0049d42e49c1e64e70d4fd9ba5f7f`。总任务 243 项，范围 22 个包及工作区/示例。

-状态：todo 58 / doing 15 / blocked 0 / done 170 / deferred 0。风险 L/M/H 表示兼容风险，不表示工期。
+状态：todo 57 / doing 16 / blocked 0 / done 170 / deferred 0。风险 L/M/H 表示兼容风险，不表示工期。

 前置依赖是启动条件；验收是完成条件。任务可以继续拆分，但不能复用或悄悄删除旧 ID。

@@ -190,7 +190,7 @@
 | PKG-VTT-THUMB-02 | artplayer-plugin-vtt-thumbnail<br>建立特有行为与错误测试 | PKG-VTT-THUMB-01, ENG-03, ENG-05 | VTT 解析、xywh、相对 URL、时间边界、请求失败和定位 | 旧版本行为可重跑，成功/失败/切源/销毁有必要断言 | M | done |
 | PKG-VTT-THUMB-03 | artplayer-plugin-vtt-thumbnail<br>整理内部职责与资源 | PKG-VTT-THUMB-02, CORE-09, CORE-19 | 纯解析/区间查找与 DOM、请求/定时器生命周期分离 | 结构变化和缺陷修复分开记录；原 API/事件/资源生命周期通过 | M | done |
 | PKG-VTT-THUMB-04 | artplayer-plugin-vtt-thumbnail<br>迁移自有源码和公开类型 | PKG-VTT-THUMB-03, ENG-04, ENG-06, CORE-07 | cue/rect/result 和参数可选性保持兼容 | 严格类型检查、旧消费样例通过；声明路径/导出和同步异步兼容 | M | done |
-| PKG-VTT-THUMB-05 | artplayer-plugin-vtt-thumbnail<br>验证新旧核心和组合 | PKG-VTT-THUMB-04, CORE-22 | 鼠标和移动进度、全屏、切源、chapter 组合 | 最终核心与原支持范围核心分别通过；设备/SDK 缺证据不能标完成 | M | todo |
+| PKG-VTT-THUMB-05 | artplayer-plugin-vtt-thumbnail<br>验证新旧核心和组合 | PKG-VTT-THUMB-04, CORE-22 | 鼠标和移动进度、全屏、切源、chapter 组合 | 最终核心与原支持范围核心分别通过；设备/SDK 缺证据不能标完成 | M | doing |
 | PKG-VTT-THUMB-06 | artplayer-plugin-vtt-thumbnail<br>验证分发并同步文档 | PKG-VTT-THUMB-05, ENG-07 | vtt.thumbnail.js、VTT/图片资源解析和产物验证 | tarball 入口/资源、类型、8082 demo 和 README 一致，有回退记录 | M | todo |

 ## 5 包迁移：artplayer-plugin-hls-control
@@ -533,6 +533,7 @@
 - PKG-VTT-THUMB-02: [记录](baselines/vtt-thumbnail-failures.json) [记录](changes/2026-09-13-PKG-VTT-THUMB-02-failures.md)
 - PKG-VTT-THUMB-03: [记录](changes/2026-09-13-PKG-VTT-THUMB-03-resources.md) [记录](baselines/vtt-thumbnail-resources.json) [记录](changes/2026-09-13-PKG-VTT-THUMB-03-parser.md) [记录](baselines/vtt-thumbnail-parser.json)
 - PKG-VTT-THUMB-04: [记录](changes/2026-09-13-PKG-VTT-THUMB-04-runtime-types.md) [记录](baselines/vtt-thumbnail-runtime-types.json) [记录](changes/2026-09-13-PKG-VTT-THUMB-04-public-types.md) [记录](baselines/vtt-thumbnail-public-types.json) [记录](changes/2026-09-13-PKG-VTT-THUMB-04-module-forms.md) [记录](baselines/vtt-thumbnail-module-forms.json) [记录](type-compatibility-policy.md) [记录](baselines/vtt-thumbnail-approved-types.json) [记录](changes/2026-09-13-PKG-VTT-THUMB-04-approved-types.md)
+- PKG-VTT-THUMB-05: [记录](changes/2026-09-14-PKG-VTT-THUMB-05-combinations.md) [记录](baselines/vtt-thumbnail-combinations.json) [记录](baselines/vtt-thumbnail-core.json)
 - PKG-HLS-01: [记录](baselines/hls-control-contract.md) [记录](baselines/hls-control-release.json) [记录](changes/2026-09-11-PKG-HLS-01-contract.md)
 - PKG-HLS-02: [记录](hls-validation.md) [记录](baselines/hls-sdk.json) [记录](baselines/hls-validation.json) [记录](changes/2026-09-11-PKG-HLS-02-tests.md)
 - PKG-HLS-03: [记录](changes/2026-09-12-PKG-HLS-03-modules.md) [记录](baselines/hls-modules-validation.json) [记录](hls-validation.md)
@@ -1,5 +1,20 @@
 # 进度与证据

+## VTT Thumbnail 五核心组合检查点
+
+PKG-VTT-THUMB-05 进入 doing。冻结真实核心5.1.6的197成员，和已有5.1.7、
+5.3.0、5.4.0及候选核心验证实际预览截图像素、Chapter、网页/原生全屏、
+播放/暂停、切源不重抓VTT及销毁。移动分支为Android UA和合成DOM触摸事件，
+不能当真机。最终三浏览器69项通过，其中9项确认1.0.1在5.1.7起的历史控件
+重名拒绝；其余60项行为通过。1.0.1/5.1.6合法组合及较新旧插件/新核心另测。
+初次漏传测试事件与Chromium全屏截图超时报告保留；后者通过稳定控件后定位
+鼠标并显式检查预览可见改善测试，不宣称生产修复。252项VTT、50项CI和lint
+通过（1既有warning）。见[检查点](changes/2026-09-14-PKG-VTT-THUMB-05-combinations.md)和[证据](baselines/vtt-thumbnail-combinations.json)。
+生产源码/类型/分发及依赖未改，任务/历史重名风险保持开放，未完成真机或打包
+验收。243项保持170 done、16 doing、57 todo。下一步MOD-02剩余工程脚本与
+模板迁移可独立推进；VAST默认行为选择仍待用户答复。本地提交，无推送/发布。
+
+

 ## Auto Thumbnail 首次 seek 诊断检查点

@@ -260,3 +260,4 @@
 | SITE-CODE-GROUP-01 | resolved / 已复现 | VitePress code-group random IDs make identical site inputs emit different output hashes | SITE-BUILD-01 |
 | SITE-EDITOR-FAILURE-01 | resolved / 已复现 | Desktop editor evaluates raw TypeScript and cannot settle FileReader errors or boot with denied storage | SITE-03 |
 | SITE-EDITOR-AMD-01 | resolved / 已复现 | Late Monaco language AMD initialization races with example dependency loading | SITE-03 |
+| VTT-CORE-NAME-01 | open / 已复现 | Published VTT 1.0.1 control name conflicts with the core placeholder introduced in 5.1.7 | PKG-VTT-THUMB-05, REL-08 |
@@ -5873,6 +5873,25 @@
        "test/browser/site-editor.spec.js"
      ],
      "resolutionRationale": "Initial real WebKit failure retained; await JS/TS language modules before Run and example dependencies. Delayed-module regression passes on all three engines."
+    },
+    {
+      "id": "VTT-CORE-NAME-01",
+      "title": "Published VTT 1.0.1 control name conflicts with the core placeholder introduced in 5.1.7",
+      "confirmation": "reproduced",
+      "status": "open",
+      "owners": [
+        "PKG-VTT-THUMB-05",
+        "REL-08"
+      ],
+      "evidence": [
+        "refactor/changes/2026-09-14-PKG-VTT-THUMB-05-combinations.md",
+        "refactor/baselines/vtt-thumbnail-combinations.json",
+        "refactor/baselines/vtt-thumbnail-core.json",
+        "test/browser/vtt-thumbnail-combinations.spec.js"
+      ],
+      "compatibleResolution": "Preserve current vtt-thumbnail and reserved core control identities; distinguish the actual working 1.0.1/5.1.6 pair from the already failing 5.1.7/5.4.0/candidate pair. Decide the supported historical pairing/migration or a compatible accommodation during release review without hiding duplicate-control failures.",
+      "closureCriteria": "Historical working and failing browser pairs remain reproducible; any claimed accommodation preserves reserved-control ownership and duplicate-registration contracts, or an explicit reviewed historical support/migration boundary is recorded.",
+      "workspaceState": "Final three-engine suite passes nine assertions of this historical rejection, not nine successful compatibility cells. No production control behavior was changed."
    }
  ]
 }
@@ -1963,11 +1963,15 @@
        "PKG-VTT-THUMB-04",
        "CORE-22"
      ],
-      "status": "todo",
+      "status": "doing",
      "risk": "M",
      "deliverable": "鼠标和移动进度、全屏、切源、chapter 组合",
      "acceptance": "最终核心与原支持范围核心分别通过；设备/SDK 缺证据不能标完成",
-      "evidence": []
+      "evidence": [
+        "changes/2026-09-14-PKG-VTT-THUMB-05-combinations.md",
+        "baselines/vtt-thumbnail-combinations.json",
+        "baselines/vtt-thumbnail-core.json"
+      ]
    },
    {
      "id": "PKG-VTT-THUMB-06",
@@ -245,3 +245,14 @@ when diagnosing a timeout: the historical failure includes a single ~10-second
 evaluate returning an already-recorded restart, not seven seconds of fast empty
 reads. These observations do not expand the timeout or waive the open timing and
 physical-device acceptance in PKG-CHAPTER-05.
+
+VTT combination tests verify actual preview screenshot pixels, Chapter coexistence,
+native/web fullscreen, source switching and cleanup across five recorded core
+inputs. The 5.1.6 server route verifies its frozen npm archive/member fingerprints.
+Historical 1.0.1 has a distinct valid 5.1.6 pair and explicit later-core name-conflict
+tests; expected historical failures are not compatibility passes. Later 1.0.x
+compiled bundles receive their documented compact-arrow fixture, while ordinary
+syntax failures remain in the historical parser tests. Mobile cases use an Android
+UA and synthetic DOM touches through the real core handlers, not trusted hardware
+input. Fullscreen mouse placement first waits for the progress control to be stable;
+the earlier hidden-preview screenshot timeout remains in the checkpoint evidence.
@@ -79,6 +79,11 @@ const asrCoreMember = `package/${asrCore.manifest.main.replace(/^\.\//, '')}`
 const asrCoreBytes = readMember(await ensureArchive(asrCore), asrCoreMember)
 assert.equal(hash(asrCoreBytes), asrCore.files[asrCoreMember], 'Adjacent stable ASR core differs from frozen release')
 add('/published-5.3.0/artplayer.js', asrCoreBytes, { kind: 'npm-release', version: asrCore.version, integrity: asrCore.integrity, member: asrCoreMember })
+const vttCore = JSON.parse(fs.readFileSync(path.join(workspace, 'refactor/baselines/vtt-thumbnail-core.json'), 'utf8')).release
+const vttCoreMember = `package/${vttCore.manifest.main.replace(/^\.\//, '')}`
+const vttCoreBytes = readMember(await ensureArchive(vttCore), vttCoreMember)
+assert.equal(hash(vttCoreBytes), vttCore.files[vttCoreMember], 'Historical VTT core differs from frozen archive')
+add('/published-5.1.6/artplayer.js', vttCoreBytes, { kind: 'npm-release', version: vttCore.version, integrity: vttCore.integrity, member: vttCoreMember })
 add('/test/audio-tone.m4a', fs.readFileSync(path.join(workspace, 'test/browser/media/audio-tone.m4a')), { kind: 'generated-media', file: 'test/browser/media/audio-tone.m4a' })
 add('/test/thumbnail-pattern.mp4', fs.readFileSync(path.join(workspace, 'test/browser/media/thumbnail-pattern.mp4')), { kind: 'generated-media', file: 'test/browser/media/thumbnail-pattern.mp4' })
 add('/test/auto-thumbnail-timeline.mp4', fs.readFileSync(path.join(workspace, 'test/browser/media/auto-thumbnail-timeline.mp4')), { kind: 'generated-media', file: 'test/browser/media/auto-thumbnail-timeline.mp4' })
@@ -165,7 +170,7 @@ const server = http.createServer((req, res) => {
    if (url.pathname === '/test/player.html') {
      const core = url.searchParams.get('core') || 'candidate'
      const chapter = url.searchParams.get('chapter') || 'candidate'
-      assert(['candidate', 'published', 'published-4.5.5', 'published-4.5.9', 'published-5.1.7', 'published-5.3.0', 'published-5.3.1-beta.1'].includes(core) && ['candidate', 'published'].includes(chapter), 'Invalid test combination')
+      assert(['candidate', 'published', 'published-4.5.5', 'published-4.5.9', 'published-5.1.6', 'published-5.1.7', 'published-5.3.0', 'published-5.3.1-beta.1'].includes(core) && ['candidate', 'published'].includes(chapter), 'Invalid test combination')
      const html = fs.readFileSync(path.join(workspace, 'test/browser/player.html'), 'utf8')
        .replace('__CORE__', core)
        .replace('__CHAPTER__', chapter)
@@ -0,0 +1,203 @@
+import { PNG } from 'pngjs'
+import { hash } from '../../refactor/scripts/releases.mjs'
+import { acceptedVttText, vttThumbnailCandidate, vttThumbnailHistorical } from '../helpers/vtt-thumbnail.js'
+import { expect, test } from './fixtures.js'
+
+const candidate = await vttThumbnailCandidate()
+const historical = (await vttThumbnailHistorical()).filter(item => /^published-.*-main$/.test(item.name))
+const cores = ['published-5.1.6', 'published-5.1.7', 'published-5.3.0', 'published', 'candidate']
+const cues = 'WEBVTT\n\n00:00.000 --> 00:04.000\nsprite.svg#xywh=0,0,80,45\n\n00:04.000 --> 00:08.000\nsprite.svg#xywh=80,0,80,45\n'
+const sprite = '<svg xmlns="http://www.w3.org/2000/svg" width="160" height="45"><path fill="red" d="M0 0h80v45H0z"/><path fill="blue" d="M80 0h80v45H80z"/></svg>'
+
+function centerPixel(bytes) {
+  const { width, height, data } = PNG.sync.read(bytes)
+  const index = (Math.floor(height / 2) * width + Math.floor(width / 2)) * 4
+  return [...data.subarray(index, index + 4)]
+}
+
+async function install(page, core, implementation, testInfo) {
+  let requests = 0
+  await page.route('**/test/vtt-combination/cues.vtt', (route) => {
+    requests++
+    return route.fulfill({ contentType: 'text/vtt', body: acceptedVttText(implementation, cues) })
+  })
+  await page.route('**/test/vtt-combination/sprite.svg', route => route.fulfill({ contentType: 'image/svg+xml', body: sprite }))
+  await page.goto(`/test/player.html?core=${core}`)
+  await page.addScriptTag({ content: `(() => { const module = { exports: {} }; const exports = module.exports; ${implementation.code}; window.vttFactory = module.exports.default || module.exports; })();` })
+  await page.evaluate(async () => {
+    window.createPlayer('/test/pattern.mp4', true)
+    await window.art.plugins.add(window.vttFactory({ vtt: '/test/vtt-combination/cues.vtt' }))
+    window.vttControl = window.art.controls['vtt-thumbnail'] || window.art.controls.thumbnails
+  })
+  await expect.poll(() => page.evaluate(() => window.art.isReady)).toBe(true)
+  await testInfo.attach('vtt-combination-inputs', {
+    contentType: 'application/json',
+    body: JSON.stringify({ core, implementation: implementation.name, sha256: hash(implementation.code), cueFormat: /^published-1\.0\./.test(implementation.name) ? 'historical compact arrow; ordinary-space failures retained separately' : 'standard spaced arrow', mobile: 'desktop unless test declares an emulated user agent; no physical-device inference' }),
+  })
+  return () => requests
+}
+
+async function hover(page, percentage) {
+  const progress = page.locator('.art-control-progress')
+  await progress.hover()
+  const bounds = await progress.boundingBox()
+  await page.mouse.move(bounds.x + bounds.width * percentage, bounds.y + bounds.height / 2)
+}
+
+for (const core of cores) {
+  test(`VTT candidate / ${core}: actual sprite pixels, chapter, native/web fullscreen and source switch`, async ({ page }, testInfo) => {
+    const requests = await install(page, core, candidate, testInfo)
+    try {
+      const preview = page.locator('.art-control-vtt-thumbnail')
+      const progress = page.locator('.art-control-progress')
+      const bounds = await progress.boundingBox()
+      await page.mouse.move(bounds.x + bounds.width * 0.25, bounds.y + bounds.height / 2)
+      await expect(preview).toHaveCSS('background-position', '0px 0px')
+      await expect(preview).toBeVisible()
+      const red = await preview.screenshot()
+      expect(centerPixel(red)).toEqual([255, 0, 0, 255])
+      await testInfo.attach('vtt-red-cell', { contentType: 'image/png', body: red })
+      await page.mouse.move(bounds.x + bounds.width * 0.75, bounds.y + bounds.height / 2)
+      await expect(preview).toHaveCSS('background-position', '-80px 0px')
+      const blue = await preview.screenshot()
+      expect(centerPixel(blue)).toEqual([0, 0, 255, 255])
+      await testInfo.attach('vtt-blue-cell', { contentType: 'image/png', body: blue })
+      await page.click('#play')
+      await expect.poll(() => page.evaluate(() => window.art.currentTime)).toBeGreaterThan(0.1)
+      await page.click('#pause')
+      await page.evaluate(() => {
+        window.art.fullscreenWeb = true
+      })
+      await expect.poll(() => page.evaluate(() => window.art.fullscreenWeb)).toBe(true)
+      await hover(page, 0.25)
+      await expect(preview).toHaveCSS('background-position', '0px 0px')
+      expect(centerPixel(await preview.screenshot())).toEqual([255, 0, 0, 255])
+      await page.evaluate(async () => {
+        window.art.fullscreenWeb = false
+        await window.art.switchUrl('/test/pattern.mp4?second')
+      })
+      await hover(page, 0.75)
+      await expect(preview).toHaveCSS('background-position', '-80px 0px')
+      expect(await page.evaluate(() => window.vttControl === window.art.controls['vtt-thumbnail'])).toBe(true)
+      expect(requests()).toBe(1)
+      expect(await page.evaluate(() => Boolean(window.art.plugins.artplayerPluginChapter))).toBe(true)
+      await expect(page.locator('.art-chapter')).toHaveCount(1)
+      await page.evaluate(() => {
+        window.vttFullscreen = []
+        window.art.on('fullscreen', value => window.vttFullscreen.push(value))
+        document.querySelector('#play').onclick = () => {
+          window.art.fullscreen = true
+        }
+      })
+      expect(await page.evaluate(() => Boolean(document.fullscreenEnabled || document.webkitFullscreenEnabled))).toBe(true)
+      await page.locator('#play').click()
+      await expect.poll(() => page.evaluate(() => (document.fullscreenElement || document.webkitFullscreenElement) === window.art.template.$player)).toBe(true)
+      await hover(page, 0.75)
+      await expect(preview).toBeVisible()
+      await expect(preview).toHaveCSS('background-position', '-80px 0px')
+      expect(centerPixel(await preview.screenshot())).toEqual([0, 0, 255, 255])
+      expect(await page.evaluate(() => (document.fullscreenElement || document.webkitFullscreenElement).contains(window.vttControl))).toBe(true)
+      await page.evaluate(() => {
+        window.art.fullscreen = false
+      })
+      await expect.poll(() => page.evaluate(() => Boolean(document.fullscreenElement || document.webkitFullscreenElement))).toBe(false)
+      await expect.poll(() => page.evaluate(() => window.vttFullscreen)).toEqual([true, false])
+      await page.evaluate(() => window.art.destroy(false))
+      await expect(preview).toHaveCount(0)
+    }
+    finally {
+      await page.evaluate(() => {
+        if (!window.art.isDestroy)
+          window.art.destroy()
+      })
+    }
+  })
+}
+
+for (const implementation of historical) {
+  const core = implementation.profile === 'old-control' ? 'published-5.1.6' : 'candidate'
+  test(`VTT ${implementation.name} / ${core}: legal old calls preserve preview and control identity`, async ({ page }, testInfo) => {
+    const requests = await install(page, core, implementation, testInfo)
+    try {
+      const name = implementation.profile === 'old-control' ? 'thumbnails' : 'vtt-thumbnail'
+      const preview = page.locator(`.art-control-${name}`)
+      const bounds = await page.locator('.art-control-progress').boundingBox()
+      await page.mouse.move(bounds.x + bounds.width * 0.75, bounds.y + bounds.height / 2)
+      await expect(preview).toHaveCSS('background-position', '-80px 0px')
+      expect(centerPixel(await preview.screenshot())).toEqual([0, 0, 255, 255])
+      expect(await page.evaluate(name => window.art.controls[name] === window.vttControl, name)).toBe(true)
+      await page.evaluate(async () => {
+        await window.art.switchUrl('/test/pattern.mp4?old-plugin')
+      })
+      await hover(page, 0.25)
+      await expect(preview).toHaveCSS('background-position', '0px 0px')
+      expect(requests()).toBe(1)
+    }
+    finally { await page.evaluate(() => window.art.destroy()) }
+  })
+}
+
+for (const core of ['published-5.1.7', 'published', 'candidate']) {
+  test(`VTT 1.0.1 / ${core}: pre-existing reserved thumbnails name conflict is retained as historical evidence`, async ({ page }, testInfo) => {
+    const implementation = historical.find(item => item.version === '1.0.1')
+    await page.route('**/test/vtt-conflict.vtt', route => route.fulfill({ contentType: 'text/vtt', body: acceptedVttText(implementation, cues) }))
+    await page.goto(`/test/player.html?core=${core}`)
+    await page.addScriptTag({ content: `(() => { const module = { exports: {} }; const exports = module.exports; ${implementation.code}; window.vttFactory = module.exports.default || module.exports; })();` })
+    const state = await page.evaluate(async () => {
+      window.createPlayer('/test/pattern.mp4')
+      const original = window.art.controls.thumbnails
+      try {
+        await window.art.plugins.add(window.vttFactory({ vtt: '/test/vtt-conflict.vtt' }))
+        return { error: null }
+      }
+      catch (error) {
+        return { error: error.message, sameReservedControl: original === window.art.controls.thumbnails }
+      }
+      finally { window.art.destroy() }
+    })
+    expect(state.error).toContain('Can\'t add an existing [thumbnails] to the [control]')
+    expect(state.sameReservedControl).toBe(true)
+    await testInfo.attach('vtt-historical-conflict', { contentType: 'application/json', body: JSON.stringify({ core, plugin: implementation.name, sha256: hash(implementation.code), state, scope: 'Existing incompatibility, not successful old-plugin/new-core acceptance and not a newly introduced refactor regression' }) })
+  })
+}
+
+test.describe('VTT mobile event integration', () => {
+  test.use({ userAgent: 'Mozilla/5.0 (Linux; Android 13) AppleWebKit/537.36 Chrome/120.0.0.0 Mobile Safari/537.36', hasTouch: true })
+  for (const core of cores) {
+    test(`VTT candidate / ${core}: emulated mobile drag routes through core progress and releases hiding timer`, async ({ page }, testInfo) => {
+      await install(page, core, candidate, testInfo)
+      const sample = await page.evaluate(() => {
+        const art = window.art
+        const progress = art.template.$progress
+        const box = progress.getBoundingClientRect()
+        const events = []
+        art.on('setBar', (type, percentage, event) => {
+          if (event)
+            events.push({ type, percentage, nativeType: event.type })
+        })
+        function touch(type, percentage) {
+          const x = box.left + box.width * percentage
+          const y = box.top + box.height / 2
+          const point = { identifier: 1, target: progress, clientX: x, clientY: y, pageX: x + scrollX, pageY: y + scrollY }
+          const event = new Event(type, { bubbles: true, cancelable: true })
+          Object.defineProperties(event, { touches: { value: type === 'touchend' ? [] : [point] }, changedTouches: { value: [point] } })
+          progress.dispatchEvent(event)
+        }
+        touch('touchstart', 0.25)
+        touch('touchmove', 0.75)
+        touch('touchend', 0.75)
+        const control = art.controls['vtt-thumbnail']
+        return { mobile: window.Artplayer.utils.isMobile, events, position: control.style.backgroundPosition, display: control.style.display, time: art.currentTime, duration: art.duration }
+      })
+      expect(sample.mobile).toBe(true)
+      expect(sample.events.some(event => event.nativeType === 'touchmove' && event.type === 'played')).toBe(true)
+      expect(sample.display).toBe('flex')
+      expect(sample.position).toBe('-80px 0px')
+      expect(sample.time / sample.duration).toBeGreaterThan(0.5)
+      await expect(page.locator('.art-control-vtt-thumbnail')).toHaveCSS('display', 'none')
+      await page.evaluate(() => window.art.destroy(false))
+      await expect(page.locator('.art-control-vtt-thumbnail')).toHaveCount(0)
+      await testInfo.attach('vtt-mobile-event-integration', { contentType: 'application/json', body: JSON.stringify({ core, sample, scope: 'Android user agent and synthetic DOM touch payloads through actual core handlers; native media seek and real hide timer. Not trusted OS touch, real Android, or iOS Safari acceptance.' }) })
+    })
+  }
+})